9
⑶
Use petroleum ether (other organic solvents are forbidden) to clean three times. Each
time shall follow the bellow procedures:
①
Pour the petroleum ether into the oil cup till the cup is 1/4
～
1/3 full.
②
Cover the cup mouth with a piece of glass cleaned by petroleum ether. Shake the
cup evenly for one minute with certain force.
③
Pour away the petroleum ether and dry the cup with a blower for 2~3 minutes.
⑷
Use the oil sample to be tested to clean the cup for 1~3 times.
①
Pour the oil sample to be tested into the oil cup, about 1/4
～
1/3 .
②
Cover the oil cup mouth with a piece of glass cleaned . Shake the cup evenly for
one to two minute with certain force.
③
Pour away the left oil sample and then can do the suppress experiment.
2.
、
Agitating Blade Cleaning Method
⑴
Wipe the agitating blade again and again with clean silk cloth until fine particles are not
found on their surfaces. It is forbidden to touch the surfaces with hands.
⑵
Use forceps to clamp the blade; put them into petroleum ether and wash.
⑶
Use forceps to clamp the blade and dry them with a blower.
⑷
Use forceps to clamp the blade; put them into the oil sample to be tested and wash.
3
、
Oil Cup Storage
Method 1
Fill the cup with good insulating oil after the test is finished and place it stable.
Method 2
Clean and dry the cup under the above procedures and then put it into a
vacuum dryer.
Note: The oil cup and agitating blade shall be cleaned under the above procedures after
the first test and tests with poor oil.
4
、
Common Fault Clearances
⑴
Power light off, screen display off
①
Check the plugging of power plug.
②
Check the condition of the protector tube inside the power plug.
③
Check the socket electricity.
